Merge branch 'dev' of super:otp into dev

* 'dev' of super:otp: (166 commits)
  Corrected documentation error and added examples to Users Guide
  In TLS 1.1, failure to properly close a connection no longer requires that a session not be resumed.  This is a change from TLS 1.0 to conform with widespread implementation practice.  Erlang ssl will now in TLS 1.0 conform to the widespread implementation practice instead of the specification to avoid performance issues.
  Add escript to bootstrap/bin
  Remove unused variable warning in inet_res
  Remove unused variable in epmd_port
  Remove compiler warnings in inet_drv
  Add SASL test suite
  Allow same module name in multiple applications if explicitely excluded
  Fix bugs concerning the option report_missing_types
  Fix default encoding in SAX parser.
  re: remove gratuitous "it " in manpage
  Spelling in (backward *compatibility*) comment.
  Improve erl_docgen's support for Dialyzer specs and types
  dialyzer warning on mnesia_tm
  Add documentation text about majority checking
  add mnesia_majority_test suite
  where_to_wlock optimization + change_table_majority/2
  bug in mnesia_tm:needs_majority/2
  optimize sticky_lock maj. check
  check majority for sticky locks
  ...

1 files changed, 24 insertions, 9 deletions

diff --git a/erts/include/internal/tile/atomic.h b/erts/include/internal/tile/atomic.h
index 48e4c0c6c8..0c7b597a6b 100644
--- a/erts/include/internal/tile/atomic.h
+++ b/erts/include/internal/tile/atomic.h
@@ -65,25 +65,35 @@ ethr_native_atomic32_read(ethr_native_atomic32_t *var)
 static ETHR_INLINE void
 ethr_native_atomic32_add(ethr_native_atomic32_t *var, ethr_sint32_t incr)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_add(&var->counter, incr);
+    ETHR_MEMORY_BARRIER;
 }      
        
 static ETHR_INLINE void
 ethr_native_atomic32_inc(ethr_native_atomic32_t *var)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_increment(&var->counter);
+    ETHR_MEMORY_BARRIER;
 }
 
 static ETHR_INLINE void
 ethr_native_atomic32_dec(ethr_native_atomic32_t *var)
 {
+    ETHR_MEMORY_BARRIER;
     atomic_decrement(&var->counter);
+    ETHR_MEMORY_BARRIER;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_add_return(ethr_native_atomic32_t *var, ethr_sint32_t incr)
 {
-    return atomic_exchange_and_add(&var->counter, incr) + incr;
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_exchange_and_add(&var->counter, incr) + incr;
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
@@ -101,18 +111,27 @@ ethr_native_atomic32_dec_return(ethr_native_atomic32_t *var)
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_and_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
 {
-    return atomic_and_val(&var->counter, mask);
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_and_val(&var->counter, mask);
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_or_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
 {
-    return atomic_or_val(&var->counter, mask);
+    ethr_sint32_t res;
+    ETHR_MEMORY_BARRIER;
+    res = atomic_or_val(&var->counter, mask);
+    ETHR_MEMORY_BARRIER;
+    return res;
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_xchg(ethr_native_atomic32_t *var, ethr_sint32_t val)
 {   
+    ETHR_MEMORY_BARRIER;
     return atomic_exchange_acq(&var->counter, val);
 } 
 
@@ -121,6 +140,7 @@ ethr_native_atomic32_cmpxchg(ethr_native_atomic32_t *var,
 			     ethr_sint32_t new,
 			     ethr_sint32_t expected)
 {
+    ETHR_MEMORY_BARRIER;
     return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
 }
 
@@ -139,9 +159,7 @@ ethr_native_atomic32_read_acqb(ethr_native_atomic32_t *var)
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_inc_return_acqb(ethr_native_atomic32_t *var)
 {
-    ethr_sint32_t res = ethr_native_atomic32_inc_return(var);
-    ETHR_MEMORY_BARRIER;
-    return res;
+    return ethr_native_atomic32_inc_return(var);
 }
 
 static ETHR_INLINE void
@@ -154,14 +172,12 @@ ethr_native_atomic32_set_relb(ethr_native_atomic32_t *var, ethr_sint32_t val)
 static ETHR_INLINE void
 ethr_native_atomic32_dec_relb(ethr_native_atomic32_t *var)
 {
-    ETHR_MEMORY_BARRIER;
     ethr_native_atomic32_dec(var);
 }
 
 static ETHR_INLINE ethr_sint32_t
 ethr_native_atomic32_dec_return_relb(ethr_native_atomic32_t *var)
 {
-    ETHR_MEMORY_BARRIER;
     return ethr_native_atomic32_dec_return(var);
 }
 
@@ -178,7 +194,6 @@ ethr_native_atomic32_cmpxchg_relb(ethr_native_atomic32_t *var,
 				  ethr_sint32_t new,
 				  ethr_sint32_t exp)
 {
-    ETHR_MEMORY_BARRIER;
     return ethr_native_atomic32_cmpxchg(var, new, exp);
 }